ST/VT = UT/WT6+14/14 = (x+4)+21/21X= 20*21/14 - 21x=420/14-25X=30-25x=5
Answer:
Only option (A) is incorrect.
So , true statements are (B), (C) &(D).
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If
then
Differentiating with respec to 
gives
So 
is indeed conservative, and
Answer:
Step-by-step explanation:
construct a semicircle with center at C and cutting line AB at D and E.
With D and E as centres draw two arcs with same radius cutting at P and Q.
Join P and Q. It is the required perpendicular.
20 and 45 have number 5 in common
